Waste pipe plug



oct. 17, 1933. R SCHWARZ ET AL 931,086

WASTE PIPE PLUG Filed June 9, 1932 iii A li? 6 @QWW Patented Oct. 17, 1933 v r 1 i r r UNITED STATES PATENT-- -oFFicls-- t WA STE PIPE PLUG V Robert G. Schwar z New Orleans, La., and

Adolph H. Vorbusch, Pass Christian, Miss, g I

Application June 9, 1932. Serial No. 616,332

1 Claim. (01. 4295) The invention relates to all metal plugs partional view through one side of the plug to better ticularly adaptedfor use in connection with drain illustrate the shrinkage clearance. openings of wash basins, sinks and the like, and Figure 4 is a vertical transverse sectional view has for its object to provide an all-metal plug through a modified form of plug, i

constructed in a manner whereby the same will Figure 5 is a vertical transverse sectional view W be formed to the off -round shape of a drain openthrough one side of the modified form of plug. ing when the plug is forced intothe drain open- Referring to the drawing, the numeral 1 desing, thereby obviating the necessity of machine ignates the body of the plug, which is prefer-- turning the drain opening ring opening and the ably made from cast brass or aluminum. The plug. It has been found that even where the body 1 is provided with the usual apertured lug 5 drain opening ring is machined, it is often dis- 2 for the reception of the ring 3, to which a torted to an off-round condition when applying chain may be attached for pulling the plug from the same in the basin. the drain opening 4 in the usual manner. The

A further object is to provide a plug comprisouter periphery 5 of the body 1 is provided with ing a body member having a peripheral channel an annular channel 6 formed therein when the 7 in which is loosely mounted an annular metallic body 1 is cast from brass or aluminum or other ring, which ring will conform to the drain openmetal. ing when the plug is forced into the opening, even It has been found that where metallic plugs if said drain opening is off-round. for drainage openings are formed from a single A further object is to provide ametallic drainpiece of metal and are machined to a perfect 7 age opening plug comprising a body member round condition for the round or machine drainhaving its periphery provided with an annular age opening 4, the drainage opening ring 6a, channel and a deformable metallic packing ring often when placed in position is distorted and in said body member and formed from a different is off-round, therefore the machined plug does metal. from the body member. Also to provide notclosely fit and form a perfect seal, conthe packing ring with an inwardly extending sequently there is a leakage. To obviate this flange extending into the body of the plug. difiiculty, after the plug 1 is cast with-the an- A further object is to first form the body Inemnular channel 6 and the fiange receiving channel her and then cast the ring in its annular channel 7 and 7a therein, a metallic packing ring 8 is 30 from a different metal having a higher shrinkthen cast in the annular channel 6. The ring age coeflicient whereby the ring, when cooled, will 8 ,is cast from a different metal, preferably an be free to rotate and flex when forced into a alloy of brass and aluminum, and cast in a mandrainage opening. ner whereby when the metals contract, the ring A further object is to provide a metallic drainis loose to rotate as there is a space 9. 35 age opening plug constructed in a manner where- The shrinkage space 9 is shown slightly exby it will conform to the drainage opening shape, aggerated to better illustrate the structure, howand at the same time will be sanitary and elimi ever it will simply be a clearance sufficient for nate packing material, for instance rubber or allowing a rotation of the ring, and at the same leather which are not sanitary, and which detime allowing the same to becompressed so that teriorate, give off bad odors, and often stain it will conform to off-round shapes of the drainarticles in washing. age opening 4. To better form a water tight With the above and other objects in view the seal, the inner periphery of the ring is provided invention resides in the combination and arwith an inwardlyextending flange 10,- which fits I rangement of partsashereinafter set forth, shown into an ann l o e 7 i th b tt of t 45 in the d w described and Claimed, it i g recess 6. In the preferred form shown inFig- 10 understood that changes in the precise embodiures l to 3, the annular flange 10 is centrally I ment of the invention may be made within the 1 disposed in relation to. the upper and lower sides scope of what is claimed without departing from of the ring, while in the modified forms shown the spirit of the invention. in Figures 4 and 5, the annular flange loavis .59 In the drawing: r at the upper side of the ring 8, however, the

Figure 1 is a vertical transverse sectional view operation of both forms is substantially the same, through the plug showing the same in a drainage excepting there is more of a circuitous passage opening. in one than in the other. r

Figure 2 is a top plan view of the plug. When the plug is forced downwardly into the 55 Figure 3 is an enlarged vertical transverse secdrain opening 4, the ring 8 will flex so that it will conform to the periphery of the drain opening 4. It will also be seen that by allowing the. ring 8 to flex slightly in relation to the plug body 1, it will not work out of the drain opening incident to temperature changes or to any rotation of the body 1. 7

From the above it will be seen that a drainage opening plug is'provided which is formed from two pieces of metal having different characteristics as to shrinkage and the annular ring will conform to off-round shapes of drain openings. This is of particular advantage when it is considered that many of the drain opening rings 6a are at the present time being formed from stampings and castings to eliminate ma-e chine work as far as possible.

esrose The invention having been set forth what is claimed as new and useful is: g

A drainage opening plug comprising a metallic body member having an annular channel in the periphery thereof, a metallic ring in said channel, a clearance between the ring and channel whereby the ring may conform in relation to the body member and a filling opening, said ring being formed from a different metal than the metal of the body member, said ring being v cast in the channel and from a metal having 

